The Daniel Defense M4A1 RIS II Rail Assembly is a free-float, accessory-ready AR-Platform rail system designed for the M4A1-style RIS II setup. Built from 6061-T6 aluminum with a black finish, it provides a continuous upper rail and mil-spec 1913 Picatinny rail sections for consistent scope and accessory mounting.

Key features

• Durable 6061-T6 aluminum construction with black anodized finish
• Mil-Spec 1913 Picatinny rails for secure mounting of optics and accessories
• Continuous upper rail supports clean alignment for co-witnessing and repeatable setups
• Free-floating barrel design helps reduce heat/pressure effects from the handguard during firing

Upgrade your M4A1 RIS II build with a rail system engineered for stable mounting and reliable performance.